everybody has a little variation, but in einstein, it was quite different. the right side, that is the side responsible for spatial relations, that is the area where the brain it is done. and in einstein's case, it was quite large compared to other brains examined. >> fascinating stuff. sanjay, is there anything about his brain that has implications for mere mortals like us? >> i thought about that a lot. i think the one thing that is interesting, the idea is, are you born with it or do you develop it? you can ask the same question when it comes to his brain. i'll tell you, when you look at the image, especially in the middle of the brain on the left side you see sort of an upside down horseshoe area, wolf, that is the area responsible for your motor control. for example. and in this case, somebody who has really fine dexterity there, has more developed brain there we know he was a musician, that is so important, he couldn't have been born with that. he became a progressively better musician, that part of his brain changes, the most remarkable thing. >> and